Electric double-layer capacitor is a type of energy storage device. It's between a battery and a capacitor, and it has the capacity to be used as a battery. Electric double-layer capacitors long life, low cycle average cost, high charge/discharge rate, high output power and high safety. Double-layer capacitors are widely used in electric devices, electric vehicles, internal combustion engines, military machines and other electromechanical equipment. Unlike aluminum electrolytic capacitors, double-layer capacitors can be charged directly without load resistance.
